Toni, Érika, Luna and Walter share their fears, problems and disappointments about their recent sexual experiences on a social network with which they become good friends.

At the end of the summer of 1992, three 15-year-old girls, Sandra, Eva and Malena disappear without a trace from a nightclub in a coastal town. When the police investigation appears to be taking the wrong direction, Javi, Sandra’s younger brother, takes the matter into his own hands. Along with the help of his friends, they discover something not of this world.